Edit: To make sure I'm being as clear as possible...
Borg = They just seem like a Zerg instead of being an interesting or dynamic battle
Our Group = Lure out Kill Node
Raid = Kill node, after node, after node in room, after room, after room with no variation
No Variation = Lazy design and a problem imo
"interesting or dynamic battle"..?
While those words are very cool to use they lack detail, if you want things to be better or change i suggest you fill out your ideas with more than just 2 words.
Its easy to say what is wrong with summat, try giving a good description of how it should be and ppl may suypport you more.